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南京栖霞山铅锌多金属矿床,储量规模大,伴生多种有益组分,如金、银、镉、铟碲、镓、硒、等,其中银、镉具大型规模.我们对该矿的伴生组分进行了查定,对银、镉等元素在矿石中的赋存特点进行了考查,并探讨其综合利用价值.一、矿石特征现已查明主矿体原生带构成矿石的矿物主要有:黄铁矿、闪锌矿、方铅矿,黝铜矿、黄铜矿,菱锰矿等;脉石矿物有:锰方解石、方解石、白云石、石英、重晶石、硬质类石墨等.此外,矿体上部尚可见到软锰矿、白铅矿、菱锌矿及矾类等次生氧化矿物.矿石主要类型、矿物组合、结构、构造特征如表1:
The Qixiashan lead-zinc polymetallic deposit in Nanjing has a large reserves and a large amount of associated beneficial components such as gold, silver, cadmium, indium, tellurium, gallium, selenium, etc. Among them silver and cadmium are of large scale. Components were investigated, silver, cadmium and other elements in the ore occurrence characteristics were examined and explored the value of its comprehensive utilization.Organic characteristics has been identified in the main ore body primary ore minerals constitute : Pyrite, sphalerite, galena, tetrahedrite, chalcopyrite, rhodochrosite; gangue minerals are: manganese calcite, calcite, dolomite, quartz, barite, hard type of graphite. In addition, the upper part of the ore body can still see the secondary oxide minerals such as pyrolusite, white lead ore, calamine and alum etc. The main types of ore, mineral assemblage, structure, structural features are shown in Table 1: